First debugger API unit test

runtime/vm/object.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "vm/assembler.h"
 #include "vm/assert.h"
 #include "vm/bigint_operations.h"
 #include "vm/bootstrap.h"
@@ skipping 1387 matching lines @@
   // Instead of truncating the type argument vector to the length of the super
   // type argument vector, we make sure that the code works with a vector that
   // is longer than necessary.
   return super_class.IsMoreSpecificThan(type_arguments,
                                         other,
                                         other_type_arguments);
 }
 
 
 bool Class::IsTopLevel() const {
-  return String::Handle(Name()).Length() == 0;
+  return String::Handle(Name()).Equals("::");
 }
 
 
 bool Class::TestType(TypeTestKind test,
                      const AbstractTypeArguments& type_arguments,
                      const Class& other,
                      const AbstractTypeArguments& other_type_arguments) const {
   ASSERT(is_finalized() || !ClassFinalizer::AllClassesFinalized());
   ASSERT(other.is_finalized() || !ClassFinalizer::AllClassesFinalized());
   if (test == kIsAssignableTo) {
@@ skipping 5913 matching lines @@
   const String& str = String::Handle(pattern());
   const char* format = "JSRegExp: pattern=%s flags=%s";
   intptr_t len = OS::SNPrint(NULL, 0, format, str.ToCString(), Flags());
   char* chars = reinterpret_cast<char*>(
       Isolate::Current()->current_zone()->Allocate(len + 1));
   OS::SNPrint(chars, (len + 1), format, str.ToCString(), Flags());
   return chars;
 }
 
 }  // namespace dart